Kolkata/New Delhi: West Bengal Governor M K Narayanan through a letter on Monday has invited Trinamool Congress chief Mamata Banerjee to take oath as Chief Minister and form new government in the state following her party's landslide win in the Assembly polls.

Banerjee met Congress President Sonia Gandhi and Prime Minister Manmohan Singh and invited them to attend the swearing-in ceremony of her cabinet in Kolkata on May 20.

Meanwhile, the preparations for swearing-in ceremony are in full swing at Raj Bhawan in Kolkata.

Partha Chatterjee, who was elected Deputy Leader of the TC Legislature Party, said “We have received an invitation from the Governor and it has been forwarded to party chief. All formalities have been completed for oath taking ceremony. In the ceremony, all the legislatures who will be included in the cabinet will also be taking oath.”

Banerjee will decide about the legislatures who will be given ministerial rank. Gyan Singh Sohan Pal has been invited to take oath for Protem Speaker.

Senior TMC leaders have already handed over a letter signed by all 184 party MLAs to the State Governor. State Congress president Manas Bhuiya has also handed over a letter to the Governor confirming the support of party legislators to the TMC. Mamata unveils ‘Rail Bandhu’

Railway Minister Mamata Banerjee visited Rail Bhawan in New Delhi and unveiled Indian Railway's first on-board magazine 'Rail Bandhu'. During her one-hour stay there,she is also understood to have taken stock of the developments in the Ministry.

Banerjee would also be attending a function in Howrah Station (Kolkata) on Tuesday where she would be flagging off four new trains and lay the foundation of 14 new projects among others.

The Rail Bandhu magazine, one of her pet projects, will be distributed free in Rajdhani, Shatabdi and AC coaches of Duranto Express trains, conceptualised with the purpose ofbringing the Railways closer to the passengers.

"It is a bid to make the people of India aware of the fast changing face of Indian Railways. People from all walks of life travel by train and this magazine will reflect the spirit of a traveller, his aspirations in an emergent India and his connect with the changing world," said a statement issued by Railways.

The magazine will include an off the beaten track section which would be dedicated to those destinations which are accessible only by rail. Luxury trains being run by Indian Railways would also feature in some issues of this magazine. This magazine will also cover pilgrimage destination, adventure tourism, heritage etc.

Tatas will come back: Mitra

Amit Mitra said on Monday Tatas will return to West Bengal with industrial investment and the group was never forced out of the state by Trinamool Congress.

"Tatas will undoubtedly come .... Mamata Banerjee did not drive them out," Mitra said in an interview with private television channel.

Tata Motors' was forced to shift its Nano project out of Singur in West Bengal following farmers' agitation against land acquisition, spearheaded by Trinamool Congress chief.

Mitra, widely seen as the next Finance Minister of the debt-ridden state, said businessmen do not have sentimental issues and look at return on investment. Once the industry confidence is restored, they would come and invest in the state, he said.

With 58,000 factories closed, there has been a flight of capital from West Bengal which has a debt of Rs two lakh crore, Mitra, who is also the Secretary General of industry chamber FICCI, said. He is expected to resign from the chamber soon.

When asked how would the Trinamool Congress government handle land acquisition-- an issue against which farmers are agitating in different parts of the country-- Mitra said farmers should not be dealt with by a crude state power.

He favoured the Haryana model where the industry buys land at market rate after negotiations with farmers who are also given annuity.

Gorkhaland: GJM pins hope on Didi

Meanwhile, the Gorkha Janamukti Morcha expressed hope that Mamata Banerjee would keep her promise of solving the Darjeeling problem.

"The GJM hopes that Mamata Banerjee will fulfill her promise of solving the hills imbroglio within 100 days of her coming to power," newly elected GJM MLA Harkabahadur Chetri told reporters.

"We will talk to Mamata Banerjee after she assumes charge as Chief Minister. If she agrees to work towards resolving our demand, then further talks will be focused on Gorkhaland," he said.

"However if she does not agree to our demands, we will resign from the Assembly and the GJMM will chalk out plans for future agitation for Gorkhaland," Chetri said.

Meanwhile, Jaswant Singh, the BJP MP from Darjeeling, said he would talk to the Centre for solving the Darjeeling hill problem.

Singh, who met GJM chief Bimal Gurung, said he expected the newly elected GJM MLAs to open dialogue with the new government in the state.